We are bringing back delivery courier blacklisting, where you can't run a delivery because you can't deliver them goods. There are a variety of reasons why you might fail to deliver and Mr Bruce has really heard all the excuses in the book and don't give many fooks.
Getting off the Delivery Courier Blacklist involves paying a fine that rapidly balloons in cost. Y'all should see some new messaging about it in game.
In somewhat related news, the payout for selling stolen delivery crates has been reduced ... Please report any tracebacks you encounter about package delivery via @bug.